Camera Tubes MCQs – Chapter 2 DAE

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1. Camera converts optical signal into,





2. C.C.D stands for





3. Materials have property that, when light falls on them, their resistance varies according to light intensity;





4. The diameter of the beam is called;





5. The audio recording contains frequencies





6. The frequency range of video recording is;





7. Materials are used as photo emissive surfaces for TV camera tubes.





8. A camera tube called following uses the principle of photo conductivity for its operation.





9. A camera tube uses the principle of photo conductivity for its working.





10. A camera tube uses the principle of photo conductivity for its working.





11. In vidicon camera tube, the control Grid G2, which is at following volts.





12. In vidicon camera tube, the control Grid G1, which is at following volts.





13. The current which flows for zero light input is called





14. The construction of plumbicon camera tube is similar to vidicon camera tube





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